Some bodybuilders and athletes use trenbolone esters for their muscle-building and otherwise performance-enhancing effects.  Such use is illegal in the United States and many other countries. The DEA classifies trenbolone and its esters as Schedule III controlled substances under the Controlled Substances Act .  Trenbolone is classified as a Schedule 4 drug in Canada  and a class C drug with no penalty for personal use or possession in the United Kingdom .  Use or possession of steroids without a prescription is a crime in Australia . 
Testosterone Cypionate is easy to stack with other compounds. Since it is a very powerful steroid the Testosterone Cypionate cycle should have milder compounds in it. Most of the time Primobolan, Equipoise and Deca Durabolin are included in the stack. It is important that when you are considering another steroid to stack with your Testosterone Cypionate cycle look at what the other can bring to the table. For instance, Testosterone aromatizes easily so another strong steroid that converts to estrogen pretty fast would not be an option. To begin your Testosterone Cypionate cycle you can have a starting dose of 50-100mg. This is to acclimatize your body to the effects of the compound. The typical steroid cycle would last about 10-12 weeks.